Question about Samsung 793DF 17" CRT Monitor
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Posted on Jan 02, 2017
SOURCE: black screen
Sounds like a backlight issue. Hold a flashlight up to the screen really close and move it around, shining it at different angles as you go. If you have a video source hooked up (ie. your PC) then you should be able to see the picture very dimly.
Several possible causes exist for such symptoms. These include capacitor failure, bad solder joints, dead CCFL, etc.
I can help you repair this problem by providing you with disassembly instructions and troubleshooting to isolate the issue. From there I will tell you how to DIY, or you can mail the faulty board to me for repair. I actually have spare parts for this monitor on hand and will ship it as soon as your old one arrives at my location. Fast turnaround!
I charge a flat rate fee of $40 for my repair service. That includes return postage. You pay for shipping to me.
I will also accept your entire monitor as a trade in towards the purchase of anothor. I have many working LCD's on hand. Prices for Grade A name brand units (Dell. HP, etc) are as follows:
15" - $50
17" - $70
19" - $90
Trade in credit for your old one:
15" - $10
17" - $20
19" - $30
If you pay the shipping on your trade in LCD, I will pay for the shipping of your new one back to you. Otherwise buyer pays shipping cost for any purchased units,
Please visit my web site, and feel free to call or email me with questions.
Posted on Dec 27, 2008
cables wont make a difference, are you sure your display settings are set to 1680 x 1050? i have had problems when it is set to 1600 x 1000 and i had to reinstall the video card drivers.
Posted on Jan 09, 2009
Samsung 3705-001191 connector which is I think the same as Radio Shack 278-261 F to PAL Adapter US to European TV Jack. About $6 at Radio Shack Stores
Posted on Apr 30, 2009
rcpips, You may need to replace one or possibly 5 -8 aluminum can "electrolytic filter capacitors" on the "switch-mode-power-supply/CCFL inverter board. If, as you say "works for 5 or 6 seconds" then that means that fuse is good. Another thing you will need to inspect SMPS board for is "cold" "frosty looking" solder joints where the components (surface mount or through hole) are soldered to the copper circuit traces. May need large magnifying glass or low power inspection microscope to locate them. Resolder any that look bad or loose. Some solder joints have thinner than "hair" thermal fractures that can also cause YOUR TYPE OF SYMPTOM!! PARTS: digikey. mouser. newark. and possibly Radio Shack. If buying filter capacitors, make sure they are rated 105 deg C only!! NOT 85 deg C!!! If caps need to be replaced (swollen, leaky) be sure to tell us the brand name you find installed on your unit! CAPXON, ELITE, JUN-FU are just 3 that you don"t want to find in your unit. BAD news if you do!! If DIY suits you, remember to document with "close-up" digital stills your unit tear-down, so you can reassemble unit without any "extra" parts laying on kitchen table!! Filter capacitors are polarized. You put them in + to +, - to -!!! if you put them in backwards they go BOOOOMMM!!! Hope this helps a little. lmistyrel on aim or 12fixlouie at fixya.
Posted on Jan 30, 2010
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